DSP Implementation of Multi-signals Multiplexing

• Main Authors: Yan-Liang Chiang, 江彥良
• Other Authors: 林信標
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/n5mnes

碩士 === 國立臺北科技大學 === 電腦與通訊研究所 === 94 === In this thesis, a novel signal process method is proposed to be used in communication system and which could mix multi-signals in a narrowband. First, finding the orthogonal sinusoids signals for encoding and decoding will be discussed. We also verify by the software. Furthermore, not only the software simulation but also the DSP implementation is presented to prove the feasibility of this novel signal process method. In order to solve the problems of synchronization, we separate into two parts. 1.) To detect start of packet by delay and correlate algorithm. 2.) To solve timing delay by raised cosine interpolation. In the implementation results, when two signals are transmitted in wired channel they could be mixed and separated by this integrated communication system and the packet correct rate of the system could achieve 98.22%.